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68NA21J62BC — NUT,SELF-LOCKING,PLATE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

68NA21J62BC: NUT,SELF-LOCKING,PLATE.

The NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2017 NUT, nut_style: PLATE, nut_height: 0.313 INCHES NOMINAL IN, nut_length: 0.954 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN, plate_width: 0.657 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-161-6735, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
68NA21J62BC
NSN: 5310-01-161-6735
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2017 NUT
nut_stylePLATE
nut_height0.313 INCHES NOMINAL IN
nut_length0.954 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
plate_width0.657 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
plate_thickness0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedFLOATING NUT
surface_treatmentANODIZE BASE
NSN5310-01-161-6735
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68NA21J62BC · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
PLATE THICKNESS: 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
NUT LENGTH: 0.954 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BASE
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
PLATE WIDTH: 0.657 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MOUNTING HOLE COUNTERSINK ANGLE: 100.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
PLATE THICKNESS0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
NUT LENGTH0.954 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BASE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE NUT
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
PLATE WIDTH0.657 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MOUNTING HOLE COUNTERSINK ANGLE100.0 DEGREES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4037,T4 ASSN STD SINGLE MATERIAL RESPONSE BASE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4118,T4 ASSN STD SINGLE MATERIAL RESPONSE NUT
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 68NA21J62BC?
68NA21J62BC is a NUT,SELF-LOCKING,PLATE.
What is the NSN for 68NA21J62BC?
68NA21J62BC is cataloged in the U.S. Government catalog under NSN 5310-01-161-6735. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.